Visible placement system for flexible passage sheath

Abstract

The invention discloses a visible placement system for a flexible passage sheath. The system comprises an endoscope and a sheath tube position adjuster. The endoscope comprises a lens body, an outer lens body, an eyepiece system and an objective lens system. The objective lens system is arranged on the lens body communicating with the head end of an outer lens tube. The tail end of the outer lens tube is tapered. The objective lens system is arranged in tail end of the outer lens tube. The sheath tube position adjuster comprises a positioner, a gripper fixing knob and a gripper body. A first end of the positioner is provided with a lens body installation part. A second end of the positioner is provided with a sheath plug used for being in butt joint with the near end of a sheath back seat of the flexible passage sheath. The gripper body rotates relative to the gripper fixing knob and rotary angles of the gripper body can be fixed by the gripper fixing knob. The gripper body is provided with a sheath tube gripper used for fixing the far end of the sheath back seat of the flexible passage sheath. The visible placement system for the flexible passage sheath has following beneficial effects: defects of original X-ray irradiation are solved so that no damage is caused to human bodies; the flexible passage sheath can be precisely guided and positioned during placement; and complications during operations are avoided.

Description

technical field [0001] The patent of the present invention relates to the field of medical devices, in particular to a system for visually guiding the placement of soft mirror channel sheaths. Background technique [0002] Currently, flexible ureteroscopic sheaths with different outer diameters need to be used before flexible ureteroscopic surgery. Take the soft endoscope channel sheath with outer diameter Fr14 / inner diameter Fr12 as an example, the procedure is as follows: rigid ureteroscopy → place guide wire → exit rigid ureteroscope → insert guide wire into the obturator in the soft endoscopic channel sheath →Under the fluoroscopy guidance of the bedside X-ray machine or mobile C-arm X-ray machine, insert the flexible scope sheath into the ureter→Exit the obturator and guide wire in the flexible scope sheath→Insert the flexible uretero-nephroscope . [0003] Using bedside X-ray machines or mobile C-arm X-ray machines for a long time or more times will cause certain har...

AI Technical Summary

Problems solved by technology

[0004] 1. Lead to ureteral false passage, mucosal avulsion, etc.

[0005] 2. Too deep into the sheath, damage the ipsilateral renal pelvis and calyceal mucosa and even penetrate the renal parenchyma

[0006] 3. Based on the occurrence of the first and second complications, leading to bleeding at the injured site

[0007] 4. Based on the occurrence of complications 1, 2, and 3, the operation failed

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